Welcome Back, Kotter (1975-1979) Cast Then and Now, see who aged horribly!!<br />#johntravolta <br />Welcome Back, Kotter (1975-1979) Cast Then and Now, see who aged horribly!!<br />Welcome Back, Kotter is an American sitcom starring Gabe Kaplan as a high-school teacher in charge of a racially and ethnically diverse remedial education class called the "Sweathogs." Recorded in front of a live studio audience, the series aired on ABC from September 9, 1975, through May 17, 1979. It provided John Travolta with his breakthrough role.<br /><br />_Starring: <br /> <br />Gabe Kaplan<br />Marcia Strassman<br />John Sylvester White<br />Robert Hegyes<br />Lawrence Hilton-Jacobs<br />Ron Palillo<br />John Travolta
